One vertex per element, one color per generator, with an edge from x to x·s.
(2,5)(6,8)(9,10,13,14)(11,15,16,12)(17,18)(19,24)(20,22)(21,23)(26,28)(29,32)(9,10)(11,15)(12,16)(13,14)(18,20)(21,24)(25,26,30,28)(27,32,31,29)(10,14)(11,16)(17,19,22,23)(18,21,20,24)(25,27,30,31)(26,29,28,32)(1,2,4,5)(3,6,7,8)(9,11,13,16)(10,12,14,15)(17,20,22,18)(19,21,23,24)(25,28,30,26)(27,29,31,32)(1,3,4,7)(2,6,5,8)(9,12)(10,11)(13,15)(14,16)(17,21)(18,23)(19,20)(22,24)(25,29)(26,31)(27,28)(30,32)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.